By Sagar Shankaran, Founder of CallSphere
City buyers shortlist sewer and storm contractors with AI assistants that read plain text. The seven facts to publish so your company shows up on the list.
Key takeaways
It is 4:10 on a Tuesday afternoon in October, and an assistant city engineer in a 60,000-person town has a problem that has nothing to do with pipe. Three catch basins on the main commercial strip are surcharging, the council packet closes Friday at noon, and the purchasing policy says anything over $25,000 needs three quotes before it goes on the agenda. In 2024 she would have opened last year's bid tab, called the two contractors she knows, and hunted for a third.
This October she typed the requirement into the assistant that came with the city's Microsoft account and asked it to find every company within ninety minutes that runs combination trucks, codes CCTV inspections to NASSCO PACP, has a written confined space entry program, and carries $5 million umbrella coverage. It came back with four names in about a minute.
Yours was not one of them. Not because you cannot do the work — you run six combination units and two crawler vans, and your crews have been coding PACP defects since 2018 — but because every one of those facts lives in a capability statement PDF behind a "Request Information" form, and the assistant could not read a word of it.
The change is not that buyers started using AI. It is that the thing contacting you is increasingly not a person. Agent-to-agent research and booking became ordinary in 2026: a purchasing analyst, a general contractor's project engineer, or a property manager's office assistant hands a goal to software, and the software does the comparing and often the scheduling. Claude Cowork, which launched 12 January 2026 and reached mobile and web in July, and ChatGPT Work, which launched 9 July 2026, are built for exactly this — a non-technical person states a goal and the software works across their files and apps until there is a finished list.
Here is the plain definition worth writing down. Being legible to a buyer's assistant means the facts a public works buyer screens on — certifications, service radius, insurance limits, cooperative contract numbers and after-hours response time — exist as ordinary text on a public page, not as a PDF, a phone call, or a sentence a salesperson says.
That is the whole distribution change. Nothing about your trucks, your crews, or your price. The screening step moved earlier and got faster, and it now happens without anyone dialing you.
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Sit with any municipal engineer or utility superintendent building an invite list and you will hear the same seven questions. They are not mysterious. They are just usually answered by phone.
Count how many of those seven a stranger can find about your company right now, in text, in under a minute. Most sewer and storm services contractors score two: a phone number and a list of services written as nouns.
flowchart LR
A["Assistant city engineer needs 3 quotes by Friday noon"] --> B["Her assistant searches for combo truck and PACP CCTV vendors"]
B --> C{"Are certs, radius and limits readable as text?"}
C -->|No| D["Company never appears on the list"]
C -->|Yes| E["Added to shortlist with cert dates attached"]
E --> F["Agent asks for availability the week of the 14th"]
F --> G["Your line books a site walk for Thursday 7am"]
G --> H["Quote emailed Wednesday, in the Friday council packet"]
Notice where you lose. Not at price — at the certification check, before anyone has any idea what you charge. A shortlist you never knew existed is worse than a bid you lost, because you cannot learn anything from it. Notice too that the buyer's assistant does not want a brochure; it wants a time. An after-hours line that only takes voicemail is a bigger hole in 2026 than it was in 2024, because a research assistant working a list at 6:30 in the evening will simply take the company that gave it a slot.
Same city, same three surcharging basins. Your company has one plain page titled "Capabilities, certifications and coverage," in text, with a date on it: nine PACP-certified operators and their renewal months, four combination trucks with 12-cubic-yard debris bodies and two with recyclers, a 90-mile radius named by county, $2 million general liability with a $5 million umbrella and $1 million pollution liability, the Sourcewell contract number in plain digits, and a line saying the emergency line is answered around the clock with a two-hour on-site target inside the radius.
The assistant finds it, quotes it back to the engineer with the certification dates in a column, and asks whether the company can walk the site Thursday morning. Your line answers, takes the address and the cross street, confirms 7am before the crew rolls, and drops the appointment into the schedule with the engineer's mobile number. Your operations manager sees it at 6am Wednesday and reassigns the CCTV van off the school district job.
The quote goes out Wednesday afternoon. You are in the Friday packet. You may still lose on price — but you lost a contest you were in, which is a completely different problem than being invisible.
Assumptions, all illustrative. A 14-employee sewer and storm services contractor, average awarded job $38,000, gross margin 34%, winning roughly one in four of the jobs you are invited to quote. Being readable adds two shortlist appearances a month you would otherwise never have seen.
| Line | Today | Readable in text |
|---|---|---|
| Quote invitations per month | 6 | 8 |
| Invitations per year | 72 | 96 |
| Wins at a 1-in-4 close rate | 18 | 24 |
| Revenue at $38,000 average | $684,000 | $912,000 |
| Gross margin at 34% | $232,560 | $310,080 |
| Cost of the change | — | One afternoon of the office manager's time, plus an answered after-hours line |
Six extra wins is $77,520 of gross margin against a page of text and a phone that gets picked up. Halve every assumption and it still pays for itself the first month it produces one invitation. The honest caveat: none of it works if the facts are wrong. A stale certification date or an inflated radius costs you a relationship the first time it gets checked.
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Nothing here should be read as letting software sell the work. Three hard stops.
Never let an assistant price a job it has not seen. A manhole rehabilitation, a CIPP liner or a root-intruded 8-inch under a state highway is priced after somebody looks at it. Publish rate ranges and a mobilization fee if you like, but a firm number on unseen work is how you buy a loss.
Prequalification stays with a person. City vendor registration portals, W-9s, SAM.gov registration and your UEI, bid bonds, DBE paperwork, certified payroll for Davis-Bacon jobs — those get signed by an officer of the company who has read them. Software can assemble the packet; it does not sign it.
Emergency commitments need a dispatcher's judgment. An agent that books a 2am response without knowing your on-call operator already has a lift station down two towns over is worse than no agent. Give the booking step a rule: it can offer times, it cannot commit crews outside a defined window, and every after-hours commitment gets a confirming call.
Start Monday with the smallest version. One page. Seven facts. A date at the top. Then ask the person who answers your phone what happens to a caller at 7pm who asks whether you can be on site Thursday.
It matters at the two ends the portals do not cover, and those two ends are most of a field services company's work. First, informal quotes under the formal bid threshold — the $8,000 emergency jetting job, the $22,000 catch basin cleaning round. Second, the "who do we invite" question on a formal bid, which is a phone-and-memory process at almost every agency in the country. The portal handles the paperwork after somebody decides you exist.
The opposite. The cooperative contract number is the most valuable fact you can publish in plain text, because it answers a buyer's hardest procedural question — how do I buy this without running a bid — in one line. Put the awarding cooperative, the contract number and the expiration date on the page.
No. It means one page of ordinary text, kept current. The common mistake is turning this into a marketing project. It is a records project: gather the seven facts, get them signed off by whoever owns the certifications and the insurance file, publish them, and set a quarterly reminder to re-check as PACP renewals and certificate of insurance dates move.
CallSphere builds AI voice and chat agents that answer business phone lines and web chat, book appointments and capture leads around the clock. It fits the last two steps of this post rather than the first: once your capabilities are readable and a buyer's assistant is trying to book a site walk at 6:30pm, something has to pick up, take the address and cross street, and put a real time on the schedule instead of a voicemail that gets returned Thursday.
Written by
Sagar Shankaran· Founder, CallSphere
LinkedInSagar Shankaran is the founder of CallSphere, where he builds production AI voice and chat agents deployed across healthcare, hospitality, real estate, and home services. He writes about agentic AI, LLM engineering, and shipping voice agents that handle real calls in production.
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